RE: 1/2A THRUST-O-METER
CP;
MAS has a few sizes that are not as well known, or talked about. One is a 6x3.5", with this one I regular cut down to 5 1/4", where it really runs well(IMO). Have you checked this prop out for pull, or RPM?
Another is the 5.5 x 4-1/2" , a real unusual size. Any data you have about these, like to know what data you can perhaps add ?